2512631 has 4 divisors (see below), whose sum is σ = 2741064. Its totient is φ = 2284200.

The previous prime is 2512597. The next prime is 2512637. The reversal of 2512631 is 1362152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2512631 is a prime.

It is a super-2 number, since 2×2512631² = 12626629084322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114200 + ... + 114221.

It is an arithmetic number, because the mean of its divisors is an integer number (685266).

2^2512631 is an apocalyptic number.

2512631 is a deficient number, since it is larger than the sum of its proper divisors (228433).

2512631 is a wasteful number, since it uses less digits than its factorization.

2512631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228432.

The product of its digits is 360, while the sum is 20.

The square root of 2512631 is about 1585.1280705356. The cubic root of 2512631 is about 135.9490690202.

Adding to 2512631 its reverse (1362152), we get a palindrome (3874783).

It can be divided in two parts, 251 and 2631, that added together give a palindrome (2882).

The spelling of 2512631 in words is "two million, five hundred twelve thousand, six hundred thirty-one".